An aircraft having a hybrid power source includes two horizontal drive units, four vertical drive units, a vertical drive unit comprising a power supply bus the output of which may be connected to a single horizontal drive unit which may be connected to at least two vertical drive units via a switch, two power generation sources connected, on the one hand, to each of the power supply buses by a respective input of the corresponding vertical drive unit and, on the other hand, to each horizontal drive unit via the respective output of each vertical drive unit, and a power supply command arranged to send a power command to the power generation sources according to the power requirements of the vertical drive units and/or horizontal drive units. The power generation sources are also suitable for recharging power sources of the vertical drive units.

An in-vehicle emergency power supply device includes a power storage unit including an electric double-layer capacitor, a charging circuit charging the power storage unit, a discharging circuit discharging the power storage unit, and a controller controlling the charging circuit and the discharging circuit. When the charging circuit charges the power storage unit, the controller determines a set full charging voltage of the power storage unit, determines a correction charging voltage lower than the set full charging voltage based on the set full charging voltage, and controls the charging circuit to charge the power storage unit until a stored voltage reaches the correction charging voltage. This in-vehicle emergency power supply device stabilizes an output voltage thereof.

Systems and methods directed to improved battery management, motor control, energy storage and battery charging. The systems and methods enable vehicle electrification and provides a paradigm changing platform that enables integration of battery management, charging and motor controls with means to manage regenerative braking, traction and handling. In embodiments, systems and methods are directed to a unified modular battery pack system having a cascaded architecture comprising an integrated combination of a networked low voltage converter/controller with peer-to-peer communication capability, embedded ultra-capacitor or other secondary energy storage element, battery management system and serially connected set of individual cells as the fundamental building block.

A material processing apparatus has as a power supply system comprising an electrical power supply and a hydraulic power supply. The electrical power supply comprises a battery pack and an electrical generator. The power supply system is operable in different power supply modes in which said at least one battery and/or said electrical generator supply electrical power to the electrically powered components of the system.

An auxiliary power unit system for mobile service vehicles is provided that can provide DC power to DC-powered equipment. The system attaches to the power take-off port of the transmission and can provide power to the DC-powered equipment without idling the engine of the mobile service vehicle, thereby reducing fossil fuel consumption and engine exhaust emissions.

A hybrid electric propulsion system may include an independent speed variable frequency (ISVF) generator coupled to an alternating current (AC) bus via a first switch. The system may further include a variable frequency independent speed (VFIS) motor coupled to the AC bus via a second switch, the system omitting circuitry to perform a full-power rated power conversion between the ISVF generator and the VFIS motor. The system may also include an alternating current direct current (AC/DC) converter coupled to the AC bus via a third switch. The system may include a battery coupled to the AC/DC converter.

An FCV includes an FC system and a battery. The FC system includes an FC stack and a boost converter that adjusts output from the FC stack. When a prescribed operation to carry out external charging with a power supply outside the vehicle is not performed for a prescribed time period after system stop (Ready-off) of the FCV under such a condition that an SOC of the battery is lower than a threshold value at the time of system stop, an FDC-ECU controls the boost converter to carry out FC charging by the FC system.

The invention relates to a system (36) for an electrically driven vehicle (10), in particular a utility vehicle (10), comprising at least one first energy store (38) of the type of a battery (38), and at least one second energy store (40) of a type different from the type of a battery (38). The second energy store (40) has an energy density (54) that is lower than an energy density (56) of the first energy store (38), and a power density (58) that is higher than a power density (60) of the first energy store (38). The first energy store (38) and the second energy store (40) are furthermore configured so as to provide energy for an electric drive (12) of the vehicle (10). The invention furthermore relates to a vehicle (10) having a system (36), and to a method for operating a system (36).

Vehicles and vehicle power circuits are disclosed for providing multiple different voltages from the same power source. An example vehicle includes a power source, a plurality of electrical loads, and a power circuit. The power circuit is electrically connected to the power source and the plurality of electrical loads. The power circuit includes a plurality of power segments connected in parallel to the power source, each power segment comprising a DC to DC converter and an ultra capacitor in series with the DC to DC converter, wherein the ultra capacitors of the plurality of power segments are connected in series.

An electric vehicle is able to supply electric power to a vehicle outside and includes: an electric power generation part; an electric power storage part; and a control part that performs control such that electric power supplied from the electric power generation part or electric power supplied from the electric power storage part is automatically selected on a vehicle side in response to information obtained from an electric power supply target apparatus at the vehicle outside, and an electric power supply to the electric power supply target apparatus is performed.